IAI America PCON-CF - Manual (Page 217)

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* Appendix
Appendix
3) Check if the fan is normal.
(Note) To extend the service life of the fan, a temperature sensor is used to detect the temperature
around the power transistor. The fan will operate when the detected temperature reaches
60
qC or above, and stop when the temperature drops to 50qC or below.
Because of this specification, the fan is designed to operate for approx. 2 seconds when the
power is turned on to allow the user to check if the fan is faulty.
4) If the fan is faulty, replace it after cutting off the power.
[1] Remove the fan.
[2] Install a new fan to the mounting bracket, plug in the connector, and affix the mounting bracket
using the flat countersunk head screws.
(Reference) Tightening torque for pan head screws: 61.5 N•cm (6.27 kgf•cm)
[3] To make sure, turn on the power to confirm that the fan operates.
5) Turn off the power and pull out the power cable.
6) Install the resin case. Engage the cutout holes in the resin case with the hooks on the mounting base
plate.
7) Plug in the connectors and cables back to their original conditions.
Check method:
[1]
[2]
Connect the power cable to the 24-V and 0-V
terminals on the power-supply terminal block.
Turn on the power to check if the fan operates.
If the fan is normal, it should operate for approx.
2 seconds.
If the fan is faulty, it will not operate.
Remove the flat countersunk head screws
(M3x5 x 2 pcs).
Pull out the connector by hand.
Remove the pan head screws
(M3x12 x 2 pcs).
Removed fan and mounting bracket